<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>拖拽</title>
  <style type="text/css">
    #div1, #div2
    {float:left; width:198px; height:66px; margin:10px;padding:10px;border:1px solid #aaaaaa;}
  </style>
  <script type="text/javascript">
    function allowDrop(ev)
    {
      ev.preventDefault();
    }

    function drag(ev)
    {
      ev.dataTransfer.setData("Text",ev.target.id);
    }

    function drop(ev)
    {
      ev.preventDefault();
      var data=ev.dataTransfer.getData("Text");
      ev.target.appendChild(document.getElementById(data));
    }
  </script>
</head>
<body>
<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)">
  <img src="/bg.jpg" draggable="true" ondragstart="drag(event)" id="drag1" style="width: 198px;height: 66px"/>
</div>
<div id="div2" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
</body>
</html>